1、初一合并同类项专项练习 1194b2(8a25b2)3b2 5(5ab4a2)(8ab8a2) 8x(3x9)(x9) (7b8)8(4b1) (3x)(6x) 23a(16a) 2m(4m) 12x3x(65x) 34a220b2(13a2)(20b2) (yz)(2yz) 1p2(pq)(2p2)pq 7b2(3a28b2)3b2 8(5ab3a2)(4ab4a2) 8x(4x5)(2x8) (9b3)2(9b6) (3x)(9x) 33a(27a) 3m(9m) 4x8x(203x) 3a213b2(a2)(22b2) (y1z)(yz) 1p2(pq)(2p2)pq 6b2(7a26b
2、2)9b2 7(8ab9a2)(2ab2a2) 9x(4x5)(3x1) (7b9)2(9b2) (4x)(7x) 33a(15a) 3m(5m) 1x5x(205x) a28b2(18a2)(20b2) (y1z)(2yz) 1p2(pq)(2p2)pq 4b2(5a25b2)2b2 7(4ab8a2)(2ab6a2) 5x(2x5)(4x8) (6b7)6(9b5) (7x)(9x) 38a(46a) 4m(7m) 6x9x(116x) 8a26b2(15a2)(28b2) (y2z)(1yz) 1p2(pq)(2p2)pq 2b2(8a25b2)8b2 6(5ab6a2)(9ab2a2) 4x(8x6)(3x3) (2b9)5(2b8) (6x)(3x)